<title>NEW operator</title>
<!-- Changed by: Martin Leslie, 14-Mar-1996 -->
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<center><h1>NEW operator.</h1></center>
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<p>
The <b>new</b> operator replaces the 
<a href="../../C/FUNCTIONS/malloc.html">malloc</a> 
function provided in C to reserve storage taken from the heap.
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The <b>new</b> operator requires one operand that describes the 
type of data to be stored in the memory. Here are some examples.
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<pre>

    int *ptr1;                  // Declare a pointer to int.
    ptr1 = new int;             // Reserve storage and point to it.
    
    float *ptr2 = new float;    // Do it all in one statement.
    
    delete ptr1;                // Free the storage.
    delete ptr2;
    
    struct House                // Declare a complex structure.
    {
        int Floors;
        int Windows;
    };
    
    House *ptr3 = new House;    // Reserve storage and point to it.

    delete ptr3;
</pre>
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Blocks or arrays of storage can also be reserved as show in the 
next example.

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<pre>

    char *ptr
    ptr = new char[80];
    
    delete [] ptr;          // Free the storage.
</pre>
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<p>



Although <b>new</b> and 
<a href="../../C/FUNCTIONS/malloc.html">malloc</a>
can be intermixed in the same code, it is probably best
to continue using 
<a href="../../C/FUNCTIONS/malloc.html">malloc</a>
in existing code and <b>new</b> in new code. This is because
you can not use 
<a href="delete.html">delete</a> with storage thats been
reserved with malloc and visa versa. If you keep to one 
method or the other you are less likely to make a mistake.
<p>
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<h2>Examples:</h2>
<img src="../../GRAPHICS/computer.gif">
<a href="../EXAMPLES/new.cc">Example program.</a>
<hr>
<h2>See Also:</h2>
<img src="../../GRAPHICS/whiteball.gif">
<a href="delete.html">delete</a> keyword.

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<h2>C References</h2>
<p>
<img src="../../GRAPHICS/whiteball.gif">
<a href="../../C/FUNCTIONS/malloc.html">malloc</a> function.

<p>
<img src="../../GRAPHICS/whiteball.gif">
<a href="../../C/FUNCTIONS/free.html">free</a> function.
</font>

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<font color=brown>
<address><a href="../../address.html">Martin Leslie</a> 
17-Feb-96</address><p>
</font>

